<template>
  <el-dropdown trigger="click" @command="handleSetSize">
    <div>
      <svg-icon class-name="size-icon" icon-class="size"/>
    </div>
    <el-dropdown-menu slot="dropdown">
      <el-dropdown-item v-for="item of sizeOptions" :key="item.value" :disabled="size===item.value"
                        :command="item.value">
        {{
        item.label }}
      </el-dropdown-item>
    </el-dropdown-menu>
  </el-dropdown>
</template>

<script>
  export default {
    data() {
      return {
        sizeOptions: [
          {label: 'Default', value: 'default'},
          {label: 'Medium', value: 'medium'},
          {label: 'Small', value: 'small'},
          {label: 'Mini', value: 'mini'}
        ]
      }
    },
    computed: {
      size() {
        return this.$store.getters.size
      }
    },
    methods: {
      handleSetSize(size) {
        this.$ELEMENT.size = size;
        this.$store.dispatch('app/setSize', size);
        this.refreshView();
        this.$message({
          message: 'Switch Size Success',
          type: 'success'
        })
      },
      refreshView() {
        // In order to make the cached page re-rendered
        this.$store.dispatch('tagsView/delAllCachedViews', this.$route);

        const {fullPath} = this.$route;

        this.$nextTick(() => {
          this.$router.replace({
            path: '/redirect' + fullPath
          })
        })
      }
    }

  }
</script>
